MATLAB code has not completed execution within the allocated time. Consider optimizing your MATLAB code to execute within the available time limit.

MATLAB code has not completed execution within the allocated time.

Consider optimizing your MATLAB code to execute within the available time limit.

[Manikanta Aditya]

Share your code here to analyse the issue, without code, it is hard to understand the cause of the issue.

[Manikanta Aditya]

https://in.mathworks.com/matlabcentral/answers/1737580-how-to-optimize-matlab-code-to-execute-within-the-available-time-limit

[naveen s]

% Define ThingSpeak URL
channelID = '2406188'; % Replace 'YourChannelID' with your actual ThingSpeak channel ID
% Provide the ThingSpeak alerts API key.  All alerts API keys start with TAK.
alertApiKey = 'takxxxxxxxxxxxxxxxx';
% Set the address for the HTTTP call
alertUrl="https://api.thingspeak.com/alerts/send";

readAPIKey = 'yyyyyyyyyyyyyyyy'; % Replace 'YourReadAPIKey' with your actual ThingSpeak read API key
thingSpeakURL = ['https://api.thingspeak.com/channels/', channelID, '/fields/1/last.json?api_key=', readAPIKey];

% webwrite uses weboptions to add required headers.  Alerts needs a ThingSpeak-Alerts-API-Key header.
options = weboptions("HeaderFields", ["ThingSpeak-Alerts-API-Key", alertApiKey ]);
% Set the email subject.
alertSubject = sprintf("Temperature alert");

threshold = 25;

% Read last temperature value from ThingSpeak channel
data = webread(thingSpeakURL);

% Check the structure of the data variable
disp(data);

% Extract temperature value from the data struct
if isfield(data, 'field1')
    temperature = str2double(data.field1);
    
    % Check if temperature exceeds threshold
    if temperature > threshold
        % Display alert message
        fprintf('Temperature alert! Current temperature: %.2f\n', temperature);
        
        % Send email alert
        recipientEmail = '[e-mail]';  % Specify the recipient email address
        subject = 'Temperature Alert';  % Email subject
        message = sprintf('Temperature alert! Current temperature: %.2f', temperature);  % Email message
        
        % Configure email settings vdjuiqfdvplznyjb
        setpref('Internet','SMTP_Server','smtp.gmail.com');
        setpref('Internet','E_mail','[e-mail]');
        setpref('Internet','SMTP_Username','[e-mail]');
        setpref('Internet','SMTP_Password','****************');
        
        % Send email
        
        sendmail(recipientEmail, subject, message);
        % (Add your email sending code here)
       
    else
        fprintf('Temperature normal. Current temperature: %.2f\n', temperature);
        
    end
else
    disp('Error: Temperature data not found in response.');
end

[naveen s]

can you help

Answer 1

[Christopher Stapels]

I suggest using thingSpeakRead and the Alerts service. Your code will preform much faster and you wont have these errors.

[naveen s]

Christopher thanks for the suggestion i got the point,but i need to use smtp server in this code to send more recipientEmails and you can see my code above i shared it and help to clear an error

[naveen s]

% Define ThingSpeak URL

channelID = '2406188'; % Replace 'YourChannelID' with your actual ThingSpeak channel ID

% Provide the ThingSpeak alerts API key. All alerts API keys start with TAK.

alertApiKey = 'takxxxxxxxxxxxxxxxx';

% Set the address for the HTTTP call

alertUrl="https://api.thingspeak.com/alerts/send";

readAPIKey = 'yyyyyyyyyyyyyyyy'; % Replace 'YourReadAPIKey' with your actual ThingSpeak read API key

thingSpeakURL = ['https://api.thingspeak.com/channels/', channelID, '/fields/1/last.json?api_key=', readAPIKey];

% webwrite uses weboptions to add required headers. Alerts needs a ThingSpeak-Alerts-API-Key header.

options = weboptions("HeaderFields", ["ThingSpeak-Alerts-API-Key", alertApiKey ]);

% Set the email subject.

alertSubject = sprintf("Temperature alert");

threshold = 25;

% Read last temperature value from ThingSpeak channel

data = webread(thingSpeakURL);

% Check the structure of the data variable

disp(data);

% Extract temperature value from the data struct

if isfield(data, 'field1')

temperature = str2double(data.field1);

% Check if temperature exceeds threshold

if temperature > threshold

% Display alert message

fprintf('Temperature alert! Current temperature: %.2f\n', temperature);

% Send email alert

recipientEmail = '[e-mail]'; % Specify the recipient email address

subject = 'Temperature Alert'; % Email subject

message = sprintf('Temperature alert! Current temperature: %.2f', temperature); % Email message

% Configure email settings vdjuiqfdvplznyjb

setpref('Internet','SMTP_Server','smtp.gmail.com');

setpref('Internet','E_mail','[e-mail]');

setpref('Internet','SMTP_Username','[e-mail]');

setpref('Internet','SMTP_Password','****************');

% Send email

sendmail(recipientEmail, subject, message);

% (Add your email sending code here)

else

fprintf('Temperature normal. Current temperature: %.2f\n', temperature);

end

else

disp('Error: Temperature data not found in response.');

end

[Christopher Stapels]

ThingSpeak wont allow you to send emails to anyone but yourself. The SMTP code wont work in ThingSpeak code.

What you can do is to use the alerts service to forward it to yourself and then set a rule in your inbox to forward to additional emails. You can use a trigger code in the email body or subject so that your email client can detect the emails you want to forward.

Also you can use a thrd party service like Twillio. They take care of making sure the users you wnat to send emails to have opted in. ThingSpeak and Mathworks dont have a process for that agreement for emails from MATLAB. You can use MATLAB analysis code to trigger the Twillio API. There are many posts in this forum that show the method.